The opening track (and third release from) Beach House’s forthcoming album 7, “Dark Spring” arrives with a stark black-and-white video directed by Zia Anger, who refers to the work as “an anomaly in process.” The band also says the track deals with beauty that grows when dealing with darkness. It’s as dreamlike as we’ve come to expect from the band, but there’s a sense of urgency driving the percussion that unsettles as it tantalizes.